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Hammoudi N, Sachar D, D'Haens G, Reinisch W, Kotze PG, Vermeire S, Schölmerich J, Kamm MA, Griffiths A, Panes J, Ghosh S, Siegel CA, Bemelman W, O'Morain C, Steinwurz F, Fleshner P, Mantzaris GJ, Sands B, Abreu MT, Dotan I, Turner D, Dignass A, Allez M. Outcomes and Endpoints of Postoperative Recurrence in Crohn's Disease: Systematic Review and Consensus Conference. J Crohns Colitis 2024; 18:943-957. [PMID: 38112601 DOI: 10.1093/ecco-jcc/jjad205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/24/2023] [Accepted: 12/01/2023] [Indexed: 12/21/2023]
Abstract
BACKGROUND Outcomes after ileocolonic resection in Crohn's disease [CD] are heterogeneous, and a clear definition of postoperative recurrence remains to be determined. Our Endpoints Working Group of the International Organization for the study of Inflammatory Bowel Disease [IOIBD] aimed to standardise postoperative outcomes, to discuss which endpoints should be used for postoperative clinical trials, and to define those which could be used in trials or registries. METHODS Based on a systematic review of the literature, recommendations and statements were drafted and sent to all IOIBD members for a first round of voting. Recommendations and statements were revised based on the voters' comments during a consensus hybrid conference open to all IOIBD members. If no agreement was reached after two rounds of voting, the statement was excluded. RESULTS In the systematic review, 3071 manuscripts were screened of which 434 were included. Sixteen recommendations were identified, of which 11 were endorsed. Recommendations and statements include that endoscopy remains the gold standard and should be used as a short-term primary endpoint in both observational cohorts and randomised controlled trials. Clinical symptoms classically used in clinical trials for luminal CD are not reliable in this specific situation. For that reason, longer-term endpoints should be based on the evidence of macroscopic inflammation assessed by imaging techniques, endoscopy, or as reflected by the presence of complications. CONCLUSIONS Agencies recommend the use of clinical evaluations, as in the case of luminal CD, and do not recognise primary endpoints based solely on endoscopy. This consensus has led to agreement on the need to define postoperative endoscopy-based and/or imaging-based endpoints.
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Affiliation(s)
- Nassim Hammoudi
- Department of Gastroenterology, Hôpital Saint-Louis, Université Paris Cité, Paris, France
| | - David Sachar
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Geert D'Haens
- Department of Gastroenterology, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | - Walter Reinisch
- Department Internal Medicine III, Division Gastroenterology & Hepatology, Medical University of Vienna, Vienna, Austria
| | | | - Severine Vermeire
- Department of Gastroenterology & Hepatology, University Hospital Leuven, Leuven, Belgium
| | | | - Michael A Kamm
- Department of Gastroenterology, St Vincent's Hospital, and Department of Medicine, University of Melbourne, Melbourne, VIC, Australia
| | - Anne Griffiths
- IBD Centre, SickKids Hospital, University of Toronto, Toronto, ON, Canada
| | - Julian Panes
- Formerly Department of Gastroenterology, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Subrata Ghosh
- APC Microbiome Ireland, College of Medicine and Health, University College Cork, Cork, Ireland
| | - Corey A Siegel
- IBD Center, Section of Gastroenterology and Hepatology, Dartmouth Hitchcock Medical Center, Lebanon, USA
| | - Willem Bemelman
- Department of Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Colm O'Morain
- Faculty of Health Sciences, Trinity College Dublin, Dublin, Ireland
| | - Flavio Steinwurz
- Department of Gastroenterology, Hospital Israelita Albert Einstein, Sao Paulo, Brazil
| | - Phillip Fleshner
- Division of Colorectal Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | | | - Bruce Sands
- Dr. Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Maria T Abreu
- Department of Medicine, Division of Gastroenterology, Crohn's and Colitis Center, Leonard M. Miller School of Medicine, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Iris Dotan
- Division of Gastroenterology, Rabin Medica Center, Petah-Tikva, Israel and the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Dan Turner
- Juliet Keidan Institute of Pediatric Gastroenterology, Shaare Zedek Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Israel
| | - Axel Dignass
- Department of Medicine I, Agaplesion Markus Hospital, Goethe-University, Frankfurt Am Main, Germany
| | - Matthieu Allez
- Department of Gastroenterology, Hôpital Saint-Louis, Université Paris Cité, Paris, France
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2
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Diagnostic accuracy of different cross-sectional imaging techniques for disease location and activity in Crohn's disease and external validation and comparison of MARIAs and IBUS-SAS. Abdom Radiol (NY) 2023; 48:821-832. [PMID: 36525049 DOI: 10.1007/s00261-022-03751-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 11/16/2022] [Accepted: 11/16/2022] [Indexed: 12/23/2022]
Abstract
PURPOSE The comparative accuracy of cross-sectional imaging techniques for evaluating Crohn's disease (CD) remains uncertain. This study aimed to assess diagnostic accuracy of disease location and activity in different cross-sectional images and validate and compare International Bowel Ultrasound Segmental Activity Score (IBUS-SAS) and Simplified Magnetic Resonance Index of Activity (MARIAs). METHODS CD patients were retrospectively included from August 2018 to May 2021. We compared accuracy of B-mode intestinal ultrasound (B-IUS), computed tomography enterography (CTE), and magnetic resonance enterography (MRE) for the identification of disease location. Meanwhile, disease activity was compared on B-IUS, color Doppler imaging, CTE, and MRE. ROC analyses were used to validate MARIAs and IBUS-SAS. Spearman rank correlation was performed to evaluate the relationships between MARIAs/IBUS-SAS and CDAI, SES-CD, and inflammatory indicators. RESULTS A total of 115 CD patients were evaluated. The diagnostic accuracy of MRE in detecting small bowel disease was superior to that of B-IUS/CTE, showing sensitivity (89.3%), specificity (71.4%), and AUC (0.820). B-IUS had the highest sensitivity (81.2%), specificity (84.8%), and AUC (0.830) for detecting terminal ileal lesions. The diagnostic accuracy for colonic disease and disease activity was not significantly different among these techniques. In the validation of IBUS-SAS, the AUC was 0.860, with an optimal cutoff value to predict active disease of 46.7. MARIAs and IBUS-SAS showed no significant differences in the correlations of CDAI, SES-CD, and inflammatory indicators. CONCLUSION MRE and B-IUS are more sensitive for detecting small bowel CD and terminal ileal CD, respectively. IBUS-SAS has potential for precisely defining CD activity.
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Rimola J, Torres J, Kumar S, Taylor SA, Kucharzik T. Recent advances in clinical practice: advances in cross-sectional imaging in inflammatory bowel disease. Gut 2022; 71:2587-2597. [PMID: 35927032 PMCID: PMC9664122 DOI: 10.1136/gutjnl-2021-326562] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 07/20/2022] [Indexed: 12/17/2022]
Abstract
Endoscopy remains the reference standard for the diagnosis and assessment of patients with inflammatory bowel disease (IBD), but it has several important limitations. Cross-sectional imaging techniques such as magnetic resonance enterography (MRE) and intestinal ultrasound (IUS) are better tolerated and safer. Moreover, they can examine the entire bowel, even in patients with stenoses and/or severe inflammation. A variety of cross-sectional imaging activity scores strongly correlate with endoscopic measures of mucosal inflammation in the colon and terminal ileum. Unlike endoscopy, cross-sectional techniques allow complete visualisation of the small-bowel and assess for extraintestinal disease, which occurs in nearly half of patients with IBD. Extramural findings may predict outcomes better than endoscopic mucosal assessment, so cross-sectional techniques might help identify more relevant therapeutic targets. Coupled with their high sensitivity, these advantages have made MRE and IUS the primary non-invasive options for diagnosing and monitoring Crohn's disease; they are appropriate first-line investigations, and have become viable alternatives to colonoscopy. This review discusses cross-sectional imaging in IBD in current clinical practice as well as research lines that will define the future role of these techniques.
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Affiliation(s)
- Jordi Rimola
- IBD Unit, Radiology Department, Hospital Clínic de Barcelona, Barcelona, Spain .,IDIBAPS, Barcelona, Spain
| | - Joana Torres
- Gastroenterology Division, Hospital Beatriz Ângelo, Loures, Portugal,Gastroenterology Division, Hospital da Luz, Lisboa, Portugal
| | - Shankar Kumar
- Centre for Medical Imaging, University College London, London, UK
| | - Stuart A Taylor
- Centre for Medical Imaging, University College London, London, UK
| | - Torsten Kucharzik
- Department of Gastroenterology, Stadtisches Klinikum Luneburg gGmbH, Luneburg, Germany
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4
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Freitas M, de Castro FD, Macedo Silva V, Arieira C, Cúrdia Gonçalves T, Leite S, Moreira MJ, Cotter J. Ultrasonographic scores for ileal Crohn's disease assessment: Better, worse or the same as contrast-enhanced ultrasound? BMC Gastroenterol 2022; 22:252. [PMID: 35585503 PMCID: PMC9118849 DOI: 10.1186/s12876-022-02326-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/27/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Intestinal ultrasound (IUS) is an increasingly used non-invasive tool to evaluate Crohn's disease (CD) activity. Recently, two IUS scores that evaluate inflammatory activity have emerged: the Simple Ultrasound Activity Score for CD (SUS-CD) and the International Bowel Ultrasound Segmental Activity Score (IBUS-SAS). We aimed to compare the accuracy of SUS-CD, IBUS-SAS and contrast-enhanced ultrasound (CEUS) in predicting inflammatory activity in the terminal ileum in ileocolonoscopy in CD patients. METHODS Retrospective study including all consecutive CD patients submitted to IUS with CEUS directed to the terminal ileum performed by a single operator between April 2016 and March 2020. Segmental SUS-CD and IBUS-SAS were calculated. A time-intensity curve of the contrast bowel wall enhancement was created with measurement of peak intensity using CEUS. The CD endoscopic activity in ileocolonoscopy was graded by Simple Endoscopic Score for CD (SES-CD) as inactive (SES-CD < 7) or active (SES-CD ≥ 7). RESULTS Fifty patients were included, 54.0% were female, with mean age of 34 ± 12 years, and most had isolated ileal disease (60.0%), and a nonstricturing, nonpenetrating behaviour (44.0%). Most of the patients (60.0%) had active endoscopic disease (SES-CD ≥ 7). SUS-CD and IBUS-SAS were not different between patients with active or inactive endoscopic disease (p = 0.15; 0.57, respectively), having a poor accuracy to correlate endoscopic activity (area under de curve (AUC) 0.62; 0.55, respectively). Peak intensity in CEUS was significantly different in patients with active or inactive endoscopic disease (p = 0.004), having a good accuracy to correlate endoscopic activity (AUC 0.80). CONCLUSION Unlike CEUS, SUS-CD and IBUS-SAS were not able to accurately correlate endoscopic activity in terminal ileum in CD. Therefore, CEUS is a non-invasive emerging method that should be increasingly integrated in the ultrasonographic evaluation of CD patients.
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Affiliation(s)
- M Freitas
- Gastroenterology Department, Hospital da Senhora da Oliveira, Guimarães, Portugal. .,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal. .,ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal.
| | - F Dias de Castro
- Gastroenterology Department, Hospital da Senhora da Oliveira, Guimarães, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - V Macedo Silva
- Gastroenterology Department, Hospital da Senhora da Oliveira, Guimarães, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - C Arieira
- Gastroenterology Department, Hospital da Senhora da Oliveira, Guimarães, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - T Cúrdia Gonçalves
- Gastroenterology Department, Hospital da Senhora da Oliveira, Guimarães, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - S Leite
- Gastroenterology Department, Hospital da Senhora da Oliveira, Guimarães, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - M J Moreira
- Gastroenterology Department, Hospital da Senhora da Oliveira, Guimarães, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - J Cotter
- Gastroenterology Department, Hospital da Senhora da Oliveira, Guimarães, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
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5
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Zhou G, Chen R, Jiang Y, Li L, Zheng J, Li C, Zhang S, Chen M. Development and validation of a non-invasive biomarker-based model to identify endoscopic recurrences of Crohn's disease. Therap Adv Gastroenterol 2022; 15:17562848221089096. [PMID: 35399190 PMCID: PMC8984852 DOI: 10.1177/17562848221089096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 03/04/2022] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Endoscopic recurrence is common in postoperative patients with Crohn's disease (CD). Monitoring endoscopic recurrence is important for selecting an appropriate treatment to prevent the development of postoperative disease. The aim of this study was to develop and validate a diagnostic model to identify endoscopic recurrence. METHODS This was a retrospective cohort study recruiting postoperative CD patients who underwent endoscopy at the First Affiliated Hospital, Sun Yat-sen University from January 2016 to June 2020. Endoscopic recurrence was defined as Rutgeerts score > i1. Thirty non-invasive biomarkers, including C-reactive protein, erythrocyte sedimentation rate, vitamin D, complete blood count, and biochemical blood indices, were used as candidate predictors to build a multivariate logistic regression diagnostic model. The predictive ability of the diagnostic models was assessed by receiving the area under the characteristic curve (AUC) and calibration plots, and internal validation was performed by the bootstrap method. RESULTS Two hundred and nineteen eligible patients were included in this study, and 135 (61.6%) patients had a postoperative endoscopic recurrence. The final diagnostic model included eight biomarkers with an AUC (95% confidence interval (CI)) of 0.796 (0.737-0.855) to identify endoscopic recurrence. The AUC, sensitivity, and specificity of this diagnostic model were 0.781 (0.780-0.782), 0.647 (0.643-0.651) and 0.811 (0.807-0.815), respectively, by internal validation. In addition, the diagnostic model exhibited good calibrability with calibration slope, calibration-in-the-large ('mean calibration') and Brier scores of 1.00, 0.00, and 0.175, respectively. CONCLUSION This non-invasive biomarker-based diagnostic model has an excellent ability to identify endoscopic recurrence in patients with CD. Application of the model to clinical practice to monitor postoperative patients may be helpful for patient management.
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Affiliation(s)
| | | | - Yueyun Jiang
- The Phase I Clinical Trial Unit, The First
Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Li Li
- Department of Gastroenterology, The First
Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jieqi Zheng
- Zhongshan School of Medicine, Sun Yat-sen
University, Guangzhou, China
| | - Chao Li
- Zhongshan School of Medicine, Sun Yat-sen
University, Guangzhou, China
| | | | - Minhu Chen
- Department of Gastroenterology, The First
Affiliated Hospital, Sun Yat-sen University, No.58 Zhongshan 2nd Road,
Guangzhou 510000, China
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Frias-Gomes C, Torres J, Palmela C. Intestinal Ultrasound in Inflammatory Bowel Disease: A Valuable and Increasingly Important Tool. GE-PORTUGUESE JOURNAL OF GASTROENTEROLOGY 2021; 29:223-239. [PMID: 35979252 PMCID: PMC9275009 DOI: 10.1159/000520212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 09/08/2021] [Indexed: 11/19/2022]
Abstract
Background Intestinal ultrasound is emerging as a non-invasive tool for monitoring disease activity in inflammatory bowel disease patients due to its low cost, excellent safety profile, and availability. Herein, we comprehensively review the role of intestinal ultrasound in the management of these patients. Summary Intestinal ultrasound has a good accuracy in the diagnosis of Crohn's disease, as well as in the assessment of disease activity, extent, and evaluating disease-related complications, namely strictures, fistulae, and abscesses. Even though not fully validated, several scores have been developed to assess disease activity using ultrasound. Importantly, intestinal ultrasound can also be used to assess response to treatment. Changes in ultrasonographic parameters are observed as early as 4 weeks after treatment initiation and persist during short- and long-term follow-up. Additionally, Crohn's disease patients with no ultrasound improvement seem to be at a higher risk of therapy intensification, need for steroids, hospitalisation, or even surgery. Similarly to Crohn's disease, intestinal ultrasound has a good performance in the diagnosis, activity, and disease extent assessment in ulcerative colitis patients. In fact, in patients with severe acute colitis, higher bowel wall thickness at admission is associated with the need for salvage therapy and the absence of a significant decrease in this parameter may predict the need for colectomy. Short-term data also evidence the role of intestinal ultrasound in evaluating therapy response, with ultrasound changes observed after 2 weeks of treatment and significant improvement after 12 weeks of follow-up in ulcerative colitis. Key Messages Intestinal ultrasound is a valuable tool to assess disease activity and complications, and to monitor response to therapy. Even though longer prospective data are warranted, intestinal ultrasound may lead to a change in the paradigm of inflammatory bowel disease management as it can be used in a point-of-care setting, enabling earlier intervention if needed.
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Affiliation(s)
- Catarina Frias-Gomes
- Gastroenterology Division, Surgical Department, Hospital Beatriz Ângelo, Loures, Portugal
| | - Joana Torres
- Gastroenterology Division, Surgical Department, Hospital Beatriz Ângelo, Loures, Portugal
- Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | - Carolina Palmela
- Gastroenterology Division, Surgical Department, Hospital Beatriz Ângelo, Loures, Portugal
- *Carolina Palmela,
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Yebra Carmona J, Poza Cordón J, Suárez Ferrer C, Martín Arranz E, Lucas Ramos J, Andaluz García I, Sánchez Azofra M, Rueda García JL, Martín Arranz MD. Correlation between endoscopy and intestinal ultrasound for the evaluation of postoperative recurrence of Crohn's disease. GASTROENTEROLOGIA Y HEPATOLOGIA 2021; 45:40-46. [PMID: 33746025 DOI: 10.1016/j.gastrohep.2021.02.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/01/2021] [Accepted: 02/01/2021] [Indexed: 01/17/2023]
Abstract
OBJECTIVE Intestinal ultrasound is considered to be a valid alternative for the evaluation of post-operative recurrence (POR) of Crohn's disease. The aim of this study is to assess the correlation between ultrasound and endoscopic findings. METHODS Patients with Crohn's disease were retrospectively recruited who had undergone ileocecal resection, and for whom a colonoscopy and intestinal ultrasound had been performed for the detection of POR. Recurrence was assessed using the Rutgeerts score (RS). The ultrasound findings analysed were bowel wall thickness (BWT), parietal hyperaemia using power Doppler, loss of layer pattern and mesenteric fat hypertrophy. RESULTS A total of 31 patients were included, of which 15 (48.4%) had no POR (RS<2b) and 16 (51.6%) had POR (RS≥2b). A statistically significant association was identified between BWT and the presence of endoscopic recurrence (a mean of 2.75mm vs. 5.68mm, P>0.001). There was also a statistically significant difference in hyperaemia between the 2groups (P=0.03). For wall thickness, an area under the ROC curve (AUC) of 92.9% was obtained, and with a cut-off point of 3.4mm, a sensitivity of 100% and specificity of 86.6%. When comparing with the most frequent biomarkers (fecal calprotectin and serum CRP), a higher AUC was obtained for wall thickness (72.3% and 72.3% vs. 92.9%). CONCLUSIONS In our experience, ultrasound has high diagnostic efficacy in the detection of POR and can be considered a valid non-invasive alternative to endoscopy.
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Affiliation(s)
- Jorge Yebra Carmona
- Unidad de Enfermedad Inflamatoria Intestinal, Servicio de Aparato Digestivo, Hospital Universitario La Paz, Madrid, España
| | - Joaquín Poza Cordón
- Unidad de Enfermedad Inflamatoria Intestinal, Servicio de Aparato Digestivo, Hospital Universitario La Paz, Madrid, España.
| | - Cristina Suárez Ferrer
- Unidad de Enfermedad Inflamatoria Intestinal, Servicio de Aparato Digestivo, Hospital Universitario La Paz, Madrid, España
| | - Eduardo Martín Arranz
- Unidad de Enfermedad Inflamatoria Intestinal, Servicio de Aparato Digestivo, Hospital Universitario La Paz, Madrid, España
| | - Javier Lucas Ramos
- Unidad de Enfermedad Inflamatoria Intestinal, Servicio de Aparato Digestivo, Hospital Universitario La Paz, Madrid, España
| | - Irene Andaluz García
- Unidad de Enfermedad Inflamatoria Intestinal, Servicio de Aparato Digestivo, Hospital Universitario La Paz, Madrid, España
| | - María Sánchez Azofra
- Unidad de Enfermedad Inflamatoria Intestinal, Servicio de Aparato Digestivo, Hospital Universitario La Paz, Madrid, España
| | - José Luis Rueda García
- Unidad de Enfermedad Inflamatoria Intestinal, Servicio de Aparato Digestivo, Hospital Universitario La Paz, Madrid, España
| | - María Dolores Martín Arranz
- Unidad de Enfermedad Inflamatoria Intestinal, Servicio de Aparato Digestivo, Hospital Universitario La Paz, Madrid, España
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8
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Goodsall TM, Nguyen TM, Parker CE, Ma C, Andrews JM, Jairath V, Bryant RV. Systematic Review: Gastrointestinal Ultrasound Scoring Indices for Inflammatory Bowel Disease. J Crohns Colitis 2021; 15:125-142. [PMID: 32614386 DOI: 10.1093/ecco-jcc/jjaa129] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS Serial measurements of luminal disease activity may facilitate inflammatory bowel disease management. Gastrointestinal ultrasound is an easily performed, non-invasive alternative to other assessment modes. However, its widespread use is limited by concerns regarding validity, reliability, and responsiveness. We systematically identified ultrasound scoring indices used to evaluate inflammatory bowel disease activity and examine their operating characteristics. METHODS Electronic databases were searched from inception to June 14, 2019 using pre-defined terms. Studies that reported on gastrointestinal ultrasound index operating properties in an inflammatory bowel disease population were eligible for inclusion. Study characteristics, index components, and operating property data [ie, validity, reliability, responsiveness, sensitivity, specificity, accuracy, positive predictive value, and negative predictive value] were extracted. The QUADAS-2 tool was used to examine study-level risk of bias. RESULTS Of the 2610 studies identified, 26 studies reporting on 21 ultrasound indices were included. The most common index components included bowel wall thickness, colour Doppler imaging, and bowel wall stratification. The correlation between ultrasound indices and references standards ranged r = 0.62-0.95 and k = 0.40-0.96. Sensitivity, specificity, accuracy, positive predictive value, and negative predictive values ranged 39-100%, 63-100%, 73-100%, 57-100%, and 40-100%, respectively. Reliability and responsiveness data were limited. Most [92%, 24/26] studies received at least one unclear or high risk of bias rating. CONCLUSIONS Several gastrointestinal ultrasound indices for use in inflammatory bowel disease have been developed. Future research should focus on fully validating existing or novel gastrointestinal ultrasound scoring instruments for assessment of Crohn's disease and ulcerative colitis.
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Affiliation(s)
- Thomas M Goodsall
- Department of Gastroenterology, Queen Elizabeth Hospital, Adelaide, SA, Australia.,Faculty of Health Sciences, School of Medicine, University of Adelaide, Adelaide, SA, Australia
| | | | | | - Christopher Ma
- Robarts Clinical Trials, Inc.. London, ON, Canada.,Division of Gastroenterology and Hepatology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Jane M Andrews
- Faculty of Health Sciences, School of Medicine, University of Adelaide, Adelaide, SA, Australia.,Department of Gastroenterology and Hepatology, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Vipul Jairath
- Robarts Clinical Trials, Inc.. London, ON, Canada.,Division of Gastroenterology, Department of Medicine, Western University, London, ON, Canada
| | - Robert V Bryant
- Department of Gastroenterology, Queen Elizabeth Hospital, Adelaide, SA, Australia.,Faculty of Health Sciences, School of Medicine, University of Adelaide, Adelaide, SA, Australia
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9
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Muñoz F, Ripollés T, Poza Cordón J, de Las Heras Páez de la Cadena B, Martínez-Pérez MJ, de Miguel E, Zabana Y, Mañosa Ciria M, Beltrán B, Barreiro-de Acosta M. Recommendations of the Spanish Working Group on Crohn's Disease and Ulcerative Colitis (GETECCU) on the use of abdominal ultrasound in inflammatory bowel disease. GASTROENTEROLOGIA Y HEPATOLOGIA 2020; 44:158-174. [PMID: 33309386 DOI: 10.1016/j.gastrohep.2020.05.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 05/22/2020] [Indexed: 10/22/2022]
Abstract
Ultrasound has an excellent diagnostic performance when Crohn's disease is suspected, when performing an activity assessment, or determining the extension and location of Crohn's disease, very similar to other examinations such as MRI or CT. It has a good correlation with endoscopic lesions and allows the detection of complications such as strictures, fistulas or abscesses. It complements colonoscopy in the diagnosis and, given its tolerance, cost and immediacy, it can be considered as a good tool for disease monitoring. In ulcerative colitis, its role is less relevant, being limited to assessing the extent and activity when it is not possible with other diagnostic techniques or if there are doubts with these. Despite its advantages, its use in inflammatory bowel disease (IBD) is not widespread in Spain. For this reason, this document reviews the advantages and disadvantages of the technique to promote knowledge about it and implementation of it in IBD Units.
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Affiliation(s)
- Fernando Muñoz
- Servicio de Digestivo. Complejo Asistencial Universitario de Salamanca, España.
| | - Tomás Ripollés
- Servicio Radiodiagnóstico, Hospital Universitario Dr. Peset, Valencia, España
| | - Joaquín Poza Cordón
- Servicio de Aparato Digestivo del Hospital Universitario La Paz, Madrid, España
| | | | | | - Enrique de Miguel
- Servicio de Radiodiagnóstico, Hospital General Universitario Gregorio Marañón, Madrid, España
| | - Yamile Zabana
- Servicio de Gastroenterología, Unidad de Enfermedad Inflamatoria Intestinal, Hospital Universitari Mútua de Terrassa, CIBERehd, Barcelona, España
| | - Miriam Mañosa Ciria
- Unidad de EII. Servei d'Aparell digestiu. Hospital Universitari Germans Trias i Pujol, CIBERehd, Barcelona, España
| | - Belén Beltrán
- Servicio de Medicina Digestiva, Hospital Universitario La Fe, CIBERehd, Valencia, España
| | - Manuel Barreiro-de Acosta
- Unidad EII. Servicio de Aparato Digestivo. Hospital Clínico Universitario de Santiago, A Coruña, España
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10
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Sævik F, Eriksen R, Eide GE, Gilja OH, Nylund K. Development and Validation of a Simple Ultrasound Activity Score for Crohn's Disease. J Crohns Colitis 2020; 15:115-124. [PMID: 32504533 PMCID: PMC7805799 DOI: 10.1093/ecco-jcc/jjaa112] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND AIMS To improve management of patients with Crohn's disease, objective measurements of disease activity are needed. Ileocolonoscopy is the current reference standard but has limitations that restrict repeated use. Ultrasonography is potentially useful for activity monitoring, but no validated sonographic activity index is currently in widespread use. Thus, we aimed to construct and validate a simple ultrasound score for Crohn's disease. METHODS Forty patients were prospectively examined with ultrasound and endoscopy in the development phase. The Simple Endoscopic Score for Crohn's Disease [SES-CD] was used as a reference standard. Seven ultrasound variables [bowel wall thickness, length, colour Doppler, stenosis, fistula, stratification and fatty wrapping] were initially included, and multiple linear regression was used to select the variables that should be included in the final score. Second, the ultrasound data from each patient were re-examined for interobserver assessment using weighted kappa and intraclass correlation. Finally, the activity index was validated in a new cohort of 124 patients. RESULTS Length, fistula and stenosis were excluded. The combination of the remaining variables provided a multiple correlation coefficient of r = 0.78. Interobserver analysis revealed poor agreement for stratification and fatty wrapping and these were thus excluded. There was excellent interobserver agreement for the remaining score consisting of wall thickness and colour Doppler. In both patient cohorts, the ultrasound score correlated well with SES-CD [Development cohort: rho = 0.83, p < 0.001, Validation cohort: rho = 0.78, p < 0.001]. A receiver operating characteristic curve analysis revealed an area under the curve of 0.92 and 0.88 for detecting endoscopic activity and moderate endoscopic activity, respectively. CONCLUSIONS A simple ultrasound activity index for Crohn's disease consisting of bowel wall thickness and colour Doppler was constructed and validated and correlated well with endoscopic disease activity.ClinicalTrials. gov ID: NCT03481751.
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Affiliation(s)
- Fredrik Sævik
- Department of Clinical Medicine, University of Bergen, Bergen, Norway,National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, Norway,Corresponding author: Fredrik Sævik, MD, Department of Clinical Medicine, University of Bergen, Haukeland University Hospital, Jonas Lies vei, N-5021 Bergen, Norway. Tel: +47 40 01 39 10; Fax: + 47 55 97 29 50;
| | - Ragnar Eriksen
- Department of Medicine, Ålesund Hospital, Ålesund, Norway
| | - Geir Egil Eide
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway,Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway
| | - Odd Helge Gilja
- Department of Clinical Medicine, University of Bergen, Bergen, Norway,National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, Norway
| | - Kim Nylund
- Department of Clinical Medicine, University of Bergen, Bergen, Norway,National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, Norway
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11
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Yaguchi K, Sasaki T, Ogashiwa T, Nishio M, Hashimoto Y, Ikeda A, Izumi M, Hanzawa A, Shibata N, Yonezawa H, Sakamaki K, Tateishi Y, Numata K, Maeda S, Kimura H, Kunisaki R. Correlation between the macroscopic severity of Crohn's disease in resected intestine and bowel wall thickness evaluated by water-immersion ultrasonography. Scand J Gastroenterol 2019; 54:1331-1338. [PMID: 31656106 DOI: 10.1080/00365521.2019.1683224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Objectives: Transabdominal ultrasonography is a common and accurate tool for managing Crohn's disease (CD); however, the significance of the resulting data is poorly understood. This study was performed to determine the association between bowel wall thickness evaluated by water-immersion ultrasonography and macroscopic severity, namely, refractory inflammation and subsequent fibrosis in CD surgical specimens.Materials and methods: We retrospectively evaluated 100 segments of colon and small intestine from 27 patients with CD. The resected specimens were placed in saline postoperatively, and bowel wall thickness was measured by water-immersion ultrasonography and compared with macroscopic findings. Correlations between bowel wall thickness and macroscopic findings were assessed using analysis of variance and receiver operating characteristic curves.Results: According to the progression of macroscopic severity, the mean bowel wall thickness was increased as follows: macroscopically intact: 4.1 mm, longitudinal ulcer scars: 5.4 mm, longitudinal open ulcers: 6.0 mm, large ulcers: 6.4 mm, cobblestone-like lesions: 7.1 mm, and fibrotic strictures: 7.4 mm. For all lesions except longitudinal ulcer scars, the bowel wall thickness was significantly thicker than that of macroscopically-intact areas (p < .001). According to receiver operating characteristic curves, bowel wall thickness >4.5 mm was associated with CD lesions, and thickness >5.5 mm was associated with more severe lesions.Conclusions: The bowel wall thickness of CD lesions was evaluated by water-immersion ultrasonography correlated with macroscopic disease severity.
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Affiliation(s)
- Katsuki Yaguchi
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan.,Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tomohiko Sasaki
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tsuyoshi Ogashiwa
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Masafumi Nishio
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Yu Hashimoto
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Aya Ikeda
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Misato Izumi
- Department of Laboratory Medicine and Clinical Investigation, Yokohama City University Medical Center, Yokohama, Japan
| | - Akiho Hanzawa
- Department of Laboratory Medicine and Clinical Investigation, Yokohama City University Medical Center, Yokohama, Japan
| | - Naomi Shibata
- Department of Laboratory Medicine and Clinical Investigation, Yokohama City University Medical Center, Yokohama, Japan
| | - Hiromi Yonezawa
- Department of Laboratory Medicine and Clinical Investigation, Yokohama City University Medical Center, Yokohama, Japan
| | - Kentaro Sakamaki
- Department of Biostatistics and Epidemiology, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Yoko Tateishi
- Department of Pathology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kazushi Numata
- Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Shin Maeda
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hideaki Kimura
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Reiko Kunisaki
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
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12
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Bollegala N, Griller N, Bannerman H, Habal M, Nguyen GC. Ultrasound vs Endoscopy, Surgery, or Pathology for the Diagnosis of Small Bowel Crohn's Disease and its Complications. Inflamm Bowel Dis 2019; 25:1313-1338. [PMID: 30883639 DOI: 10.1093/ibd/izy392] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND In patients with inflammatory bowel disease, we strive to achieve mucosal healing, as this has been shown to decrease the risk of disease flares, hospitalization, and surgery. For this reason, we must use objective measures of mucosal healing to inform our clinical decision-making and can no longer rely on patient symptoms alone. Assessment of small bowel Crohn's disease (SBCD) is particularly challenging given its lack of accessibility via standard endoscopic techniques. Ultrasound (US) represents a readily available, cost-effective, minimally invasive, radiation-free alternative for the assessment of small bowel disease. In this study, we performed a systematic review to determine the accuracy of ultrasound in diagnosing SBCD and its complications as compared with endoscopic visualization, surgery, and/or pathology. METHODS We searched MEDLINE, EMBASE, and CENTRAL. Prospective cohort studies published up to March 2017 were reviewed. References meeting all eligibility criteria were assessed at the full-text level by 2 independent reviewers. Sensitivity and specificity were collected where available. RESULTS A total of 2817 unique references were identified. Twenty-two studies were included. All studies were at low-moderate risk of bias based on the Quality Assessment of Diagnostic Accuracy Studies criteria. Transabdominal US (TAUS) yielded moderately high sensitivity and specificity for the diagnosis of SBCD and its postoperative recurrence. Detection was more accurate for severe postoperative recurrence. The diagnostic accuracy of US in stricture and abscess detection was high. Contrast enhancement improved the detection of abscess. Diagnostic detection of fistulas was of moderate accuracy. Entero-enteric fistulization and entero-mesenteric fistulization were most clearly identified. CONCLUSIONS Ultrasound can be used to diagnose SBCD in those with known or suspected Crohn's disease. It can be used to detect postoperative recurrence and can accurately identify abscesses and fistulas, especially with the aid of contrast enhancement.
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Affiliation(s)
- Natasha Bollegala
- Division of Gastroenterology, Department of Medicine, Women's College Hospital, Toronto, Canada
| | - Nadia Griller
- Division of Gastroenterology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Canada
| | - Heather Bannerman
- Internal Medicine Residency Training Program, McMaster University, Hamilton, Canada
| | - Mohammed Habal
- Internal Medicine Residency Training Program, University of Toronto, Toronto, Canada
| | - Geoffrey C Nguyen
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada.,Division of Gastroenterology, Department of Medicine, Mount Sinai Hospital, Toronto, Canada
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13
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Intravenous Contrast-Enhanced Ultrasound for Assessing and Grading Postoperative Recurrence of Crohn's Disease. Dig Dis Sci 2019; 64:1640-1650. [PMID: 30604372 DOI: 10.1007/s10620-018-5432-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 12/12/2018] [Indexed: 12/11/2022]
Abstract
PURPOSE The aim was to investigate the contribution of contrast-enhanced ultrasound (CEUS) to improve the results of US in the evaluation of recurrence in postsurgical Crohn's disease (CD) and establish its role in the assessment of the severity. METHODS Anastomotic site was assessed in 108 postsurgical CD patients with B-mode, color Doppler and CEUS. Bowel wall thickness (WT), transmural complications or stenosis, color Doppler grade, and bowel wall contrast enhancement (BWCE)-using time-intensity curves-were correlated with endoscopic Rutgeerts score. A receiver operating characteristic (ROC) curve was built to establish the best cutoff to predict recurrence and the severity. A US scoring system was elaborated in order to determine the grade of recurrence. RESULTS Ileocolonoscopy detected recurrence in 90 (83.3%) subjects and severe recurrence in 62. WT ≥ 3 mm had an accuracy of 90.7% in the detection of endoscopic recurrence. The combination of parameters-WT ≥ 3 mm and BWCE (≥ 46%)-demonstrated similar accuracy (90.7%). A WT ≥ 5 mm showed the best specificity (100%) for the diagnosis of recurrence and a WT ≥ 6 mm the best specificity (95.7%) for the detection of severe recurrence. The combination of sonographic parameters-WT ≥ 6 mm or WT between 5 and 6 mm with BWCE ≥ 70%, or complications-obtained the best results grading the recurrence (sensitivity, specificity, and accuracy of 90.3%, 87%, and 88.9%, respectively). CONCLUSIONS US shows high sensitivity and specificity for the diagnosis of postsurgical recurrence. When combined with CEUS, it can improve the detection of severe recurrence.
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14
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Bots S, Nylund K, Löwenberg M, Gecse K, Gilja OH, D'Haens G. Ultrasound for Assessing Disease Activity in IBD Patients: A Systematic Review of Activity Scores. J Crohns Colitis 2018; 12:920-929. [PMID: 29684200 DOI: 10.1093/ecco-jcc/jjy048] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 04/16/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIMS Ultrasound [US] indices for assessing disease activity in IBD patients have never been critically reviewed. We aimed to systematically review the quality and reliability of available ultrasound [US] indices compared with reference standards for grading disease activity in IBD patients. METHODS Pubmed, Embase and Medline were searched for relevant literature published within the period 1990 to June 2017. Relevant publications were identified through full text review after initial screening by two investigators. Data on methodology and index characteristics were collected. Study quality was assessed using a modified version of the Quadas-2 tool for risk of bias assessment. RESULTS Of 20 studies with an US index, 11 studies met the inclusion criteria. Out of these 11 studies, 7 and 4 studied Crohn's disease [CD] and ulcerative colitis [UC0 activity indices, respectively. Parameters that were used in these indices included bowel wall thickness [BWT], Doppler signal [DS], wall layer stratification [WLS], compressibility, peristalsis, haustrations, fatty wrapping, contrast enhancement [CE], and strain pattern. Study quality was graded high in 5 studies, moderate in 3 studies and low in 3 studies. Ileocolonoscopy was used as the reference standard in 9 studies. In 1 study a combined index of ileocolonoscopy and barium contrast radiography and in 1 study histology was used as the reference standard. Only 5 studies used an established endoscopic index for comparison with US. CONCLUSIONS Several US indices for assessing disease activity in IBD are available; however, the methodology for development was suboptimal in most studies. For the development of future indices, stringent methodological design is required.
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Affiliation(s)
- S Bots
- Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | - K Nylund
- National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, Norway
| | - M Löwenberg
- Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | - K Gecse
- Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | - O H Gilja
- National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - G D'Haens
- Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
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15
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Rispo A, Imperatore N, Testa A, Nardone OM, Luglio G, Caporaso N, Castiglione F. Diagnostic Accuracy of Ultrasonography in the Detection of Postsurgical Recurrence in Crohn's Disease: A Systematic Review with Meta-analysis. Inflamm Bowel Dis 2018; 24:977-988. [PMID: 29688470 DOI: 10.1093/ibd/izy012] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS The postoperative course of Crohn's disease (CD) is best predicted by ileocolonoscopy. Ultrasonography (US) has been proposed as indicator for postsurgical recurrence (PSR), but further confirmation is needed. We performed a systemic review with meta-analysis to assess the pooled diagnostic accuracy of US in the evaluation of PSR. METHODS The systematic review was performed in PubMed/MEDLINE, EMBASE, SCOPUS, and Cochrane databases to identify studies assessing the US accuracy in PSR diagnosis. A sub-analysis between bowel sonography (BS), small-intestine contrast ultrasound (SICUS), and contrast-enhanced ultrasound (CEUS) was performed. Pooling was performed using diagnostic fixed or random-effect model according with heterogeneity. RESULTS Ten studies (536 patients) met the inclusion criteria. There was no publication bias. Pooled sensitivity and specificity of US in detecting PSR were 0.94 (95% CI, 0.86-0.97) and 0.84 (95% CI, 0.62-0.94; diagnostic accuracy 90%), respectively. At sub-analysis, pooled sensitivity and specificity were 0.82 (95% CI, 0.76-0.88) and 0.88 (95% CI, 0.74-0.95) respectively for BS, with 0.99 (95% CI, 0.99-1.00) and 0.74 (95% CI, 0.73-0.74) for SICUS. Finally, an SROC curve was built to establish the best bowel wall thickness (BWT) cutoff able to predict the presence of severe PSR (Rutgeerts ≥3): a BWT ≥5.5 mm at US revealed sensitivity of 83.8% (95% CI, 73.6%-90.6%), specificity of 97.7% (95% CI, 93%-99%). CONCLUSIONS US shows high sensitivity and specificity for the diagnosis of PSR. SICUS appears more sensitive-but less specific-than BS, while the role of CEUS needs further investigation. A cutoff value of BWT ≥5.5 mm is strongly indicative of severe PSR. 10.1093/ibd/izy012_video1izy012.video15775249754001.
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Affiliation(s)
- Antonio Rispo
- Gastroenterology, Department of Clinical Medicine and Surgery, School of Medicine "Federico II" of Naples, Italy
| | - Nicola Imperatore
- Gastroenterology, Department of Clinical Medicine and Surgery, School of Medicine "Federico II" of Naples, Italy
| | - Anna Testa
- Gastroenterology, Department of Clinical Medicine and Surgery, School of Medicine "Federico II" of Naples, Italy
| | - Olga Maria Nardone
- Gastroenterology, Department of Clinical Medicine and Surgery, School of Medicine "Federico II" of Naples, Italy
| | - Gaetano Luglio
- Colorectal Surgery, Department of Clinical Medicine and Surgery, School of Medicine "Federico II" of Naples, Italy
| | - Nicola Caporaso
- Gastroenterology, Department of Clinical Medicine and Surgery, School of Medicine "Federico II" of Naples, Italy
| | - Fabiana Castiglione
- Gastroenterology, Department of Clinical Medicine and Surgery, School of Medicine "Federico II" of Naples, Italy
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16
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Conti CB, Giunta M, Gridavilla D, Conte D, Fraquelli M. Role of Bowel Ultrasound in the Diagnosis and Follow-up of Patients with Crohn's Disease. ULTRASOUND IN MEDICINE & BIOLOGY 2017; 43:725-734. [PMID: 28185694 DOI: 10.1016/j.ultrasmedbio.2016.12.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 11/18/2016] [Accepted: 12/20/2016] [Indexed: 06/06/2023]
Abstract
Crohn's disease (CD) is an inflammatory chronic bowel disorder; it can involve the whole gastrointestinal tract, but its localization in the ileum or colon is most common. The reference standard for the diagnosis of CD is ileocolonoscopy with histologic assessment. The reference standard for the detection of any complications is surgery. However, imaging techniques have an important role both in the detection/localization of CD and in the follow-up of CD patients. In the last few years, the technical development of ultrasound equipment, the advent of new technologies such as elastography and mostly the increased expertise of sonographers have boosted the role of bowel ultrasound in assessment of the gastrointestinal tract. In fact, bowel ultrasound is particularly attractive thanks to its widespread availability, non-invasiveness, low cost and good reproducibility, as it can be easily repeated during follow-up. The aim of this article is to provide an extensive overview of the actual role of bowel ultrasound in the detection and follow-up of patients with CD.
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Affiliation(s)
- Clara Benedetta Conti
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; and Department of Pathophysiology and Organ Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Mariangela Giunta
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; and Department of Pathophysiology and Organ Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Daniele Gridavilla
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; and Department of Pathophysiology and Organ Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Dario Conte
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; and Department of Pathophysiology and Organ Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Mirella Fraquelli
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; and Department of Pathophysiology and Organ Transplantation, Università degli Studi di Milano, Milan, Italy.
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17
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Bhatnagar G, Von Stempel C, Halligan S, Taylor SA. Utility of MR enterography and ultrasound for the investigation of small bowel Crohn's disease. J Magn Reson Imaging 2016; 45:1573-1588. [PMID: 27943484 DOI: 10.1002/jmri.25569] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 11/11/2016] [Indexed: 12/18/2022] Open
Abstract
Cross sectional Imaging plays an increasingly important role the diagnosis and management of Crohn's disease. Particular emphasis is placed on MRI and Ultrasound as they do not impart ionising radiation. Both modalities have reported high sensitivity for disease detection, activity assessment and evaluation of extra-luminal complications, and have positive effects on clinical decision making. International Guidelines now recommend MRI and Ultrasound in the routine management of Crohn's disease patients. This article reviews the current evidence base supporting both modalities with an emphasis on the key clinical questions. We describe current protocols, basic imaging findings and highlight areas in need of further research. LEVEL OF EVIDENCE 5 Technical Efficacy: Stage 4 J. MAGN. RESON. IMAGING 2017;45:1573-1588.
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Affiliation(s)
- Gauraang Bhatnagar
- Frimley Park Hospital NHS Foundation Trust, London, UK.,Centre for Medical Imaging, University College London, London, UK
| | | | - Steve Halligan
- Centre for Medical Imaging, University College London, London, UK
| | - Stuart A Taylor
- Centre for Medical Imaging, University College London, London, UK
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18
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Caobelli F, Evangelista L, Quartuccio N, Familiari D, Altini C, Castello A, Cucinotta M, Di Dato R, Ferrari C, Kokomani A, Laghai I, Laudicella R, Migliari S, Orsini F, Pignata SA, Popescu C, Puta E, Ricci M, Seghezzi S, Sindoni A, Sollini M, Sturiale L, Svyridenka A, Vergura V, Alongi P, Young AIMN Working Group. Role of molecular imaging in the management of patients affected by inflammatory bowel disease: State-of-the-art. World J Radiol 2016; 8:829-845. [PMID: 27843542 PMCID: PMC5084061 DOI: 10.4329/wjr.v8.i10.829] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 06/30/2016] [Accepted: 08/29/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To present the current state-of-the art of molecular imaging in the management of patients affected by inflammatory bowel disease (IBD).
METHODS A systematic review of the literature was performed in order to find important original articles on the role of molecular imaging in the management of patients affected by IBD. The search was updated until February 2016 and limited to articles in English.
RESULTS Fifty-five original articles were included in this review, highlighting the role of single photon emission tomography and positron emission tomography.
CONCLUSION To date, molecular imaging represents a useful tool to detect active disease in IBD. However, the available data need to be validated in prospective multicenter studies on larger patient samples.
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19
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Evolving roles of cross-sectional imaging in Crohn's disease. Dig Liver Dis 2016; 48:975-83. [PMID: 27338853 DOI: 10.1016/j.dld.2016.05.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 05/13/2016] [Accepted: 05/21/2016] [Indexed: 12/11/2022]
Abstract
The implementation of cross-sectional imaging techniques for the clinical management of Crohn's disease patients has steadily grown over the recent years, thanks to a series of technological advances, including the evolution of contrast media for magnetic resonance, computed tomography and bowel ultrasound. This has resulted in a continuous improvement of diagnostic accuracy and capability to detect Crohn's disease-related complications. Additionally, a progressive widening of indications for cross-sectional imaging in Crohn's disease has been put forward, thus leading to hypothesize that in the near future imaging techniques can increasingly complement endoscopy in most clinical settings, including the grading of disease activity and the assessment of mucosal healing or Crohn's disease post-surgical recurrence.
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20
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Medical Imaging in Small Bowel Crohn's Disease-Computer Tomography Enterography, Magnetic Resonance Enterography, and Ultrasound: "Which One Is the Best for What?". Inflamm Bowel Dis 2016; 22:1246-61. [PMID: 27070909 DOI: 10.1097/mib.0000000000000727] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Small bowel imaging in Crohn's disease (CD) is an important adjunct to endoscopy for the diagnosis, assessment of postoperative recurrence, and detection of complications. The best imaging modality for such indications though remains unclear. This systematic review aims to identify the imaging modality of choice considering the use of ultrasound (US), computed tomography enterography (CTE), and magnetic resonance enterography (MRE). METHODS Databases were systematically searched for studies pertaining to the performance of US, CTE, and MRE, as compared with a predefined reference standard in the assessment of small bowel CD. RESULTS Thirty-three studies, from a total of 1427 studies, were included in the final analysis. A comparable performance was demonstrated for MRE, CTE, and US for the diagnosis of small CD. Ultrasound was found to have the highest accuracy in the differentiation of inflammation and fibrosis. Postoperative recurrence detection was feasible with the use of MRE and US. All 3 modalities were shown to have a role in the detection of small bowel CD complications. The radiation exposure associated with CTE can be minimized by using lower radiation protocols. CONCLUSIONS Ultrasound, CTE, and MRE all play an important role in the diagnosis and management of small bowel CD, with preference for a particular modality being influenced by specific indication, institution resources, and patient preference.
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21
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Bowel Ultrasonography in the Management of Crohn's Disease. A Review with Recommendations of an International Panel of Experts. Inflamm Bowel Dis 2016; 22:1168-83. [PMID: 26958988 DOI: 10.1097/mib.0000000000000706] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Bowel ultrasonography (US) is considered a useful technique for assessing mural inflammation and complications in Crohn's disease (CD). The aim of this review is to appraise the evidence on the accuracy of bowel US for CD. In addition, we aim to provide recommendations for its optimal use. METHODS Publications were identified by literature search from 1992 to 2014 and selected based on predefined criteria: 15 or more patients; bowel US for diagnosing CD, complications, postoperative recurrence, activity; adequate reference standards; prospective study design; data reported to allow calculation of sensitivity, specificity, agreement, or correlation values; articles published in English. RESULTS The search yielded 655 articles, of which 63 were found to be eligible and retrieved as full-text articles for analysis. Bowel US showed 79.7% sensitivity and 96.7% specificity for the diagnosis of suspected CD, and 89% sensitivity and 94.3% specificity for initial assessment in established patients with CD. Bowel US identified ileal CD with 92.7% sensitivity, 88.2% specificity, and colon CD with 81.8% sensitivity, 95.3% specificity, with lower accuracy for detecting proximal lesions. The oral contrast agent improves the sensitivity and specificity in determining CD lesions and in assessing sites and extent. CONCLUSIONS Bowel US is a tool for evaluation of CD lesions in terms of complications, postoperative recurrence, and monitoring response to medical therapy; it reliably detects postoperative recurrence and complications, as well as offers the possibility of monitoring disease progression.
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22
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Serafin Z, Białecki M, Białecka A, Sconfienza LM, Kłopocka M. Contrast-enhanced Ultrasound for Detection of Crohn's Disease Activity: Systematic Review and Meta-analysis. J Crohns Colitis 2016; 10:354-62. [PMID: 26507861 PMCID: PMC4957465 DOI: 10.1093/ecco-jcc/jjv196] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 10/15/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS Reports on imaging of active Crohn's disease (aCD) using contrast-enhanced ultrasound (CEUS) are encouraging. However, the statistical power of most published papers is limited due to the small size of the patient groups included. This study was performed to verify the diagnostic value of CEUS in detecting aCD. METHODS A systematic literature search was performed by two independent reviewers for articles on the test characteristics of CEUS for the identification of aCD. The quality of the analysed studies was evaluated using a quality assessment tool for diagnostic accuracy studies (QUADAS-2). Pooling was performed using a diagnostic random-effect model and bivariate analysis. RESULTS Eight articles were included in the final analysis, with a total of 332 patients. There was no significant publication bias. Significant heterogeneity was found regarding CEUS methodology and sonographic definitions of aCD. In a bivariate analysis, pooled sensitivity was 0.94 (95% CI 0.87-0.97) and pooled specificity was 0.79 (95% CI 0.67-0.88). Spearman correlation statistics presented no significant diagnostic threshold effect (r = 0.12, p > 0.9). Subgroup analysis showed that relative intestine wall enhancement had the highest diagnostic value (area under the curve 94%), while the presence of enhancement and analysis of the slope were less useful (area under the curve 91 and 90%, respectively). CONCLUSIONS CEUS presents good sensitivity and moderate specificity in the detection of the aCD. Large-scale randomized trials with quantitative evaluation of CEUS images are necessary to promote this technique in clinical practice.
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Affiliation(s)
- Zbigniew Serafin
- Department of Radiology and Diagnostic Imaging, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Marcin Białecki
- Department of Radiology and Diagnostic Imaging, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Agnieszka Białecka
- Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz, Poland
| | - Luca Maria Sconfienza
- Department of Radiology, IRCCS Policlinico San Donato and Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milano, Italy
| | - Maria Kłopocka
- Chair of Vascular Diseases and Internal Medicine, Nicolaus Copernicus University, Collegium Medicum, Bydgoszcz,Poland
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Diagnostic performance of 18F-FDG-PET versus scintigraphy in patients with inflammatory bowel disease: a meta-analysis of prospective literature. Nucl Med Commun 2015; 35:1233-46. [PMID: 25192191 DOI: 10.1097/mnm.0000000000000202] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the diagnostic performance of fluorine-18 fluorodeoxyglucose-PET (F-FDG-PET), leukocyte scintigraphy (LS), and monoclonal antigranulocyte antibody scintigraphy (MAAS) in patients with inflammatory bowel disease (IBD) and perform pairwise comparisons of the diagnostic accuracy between these different imaging modalities. METHODS Through a search of PubMed, EMBASE, and the Cochrane Library (January 1993-May 2013), we performed a random effects meta-analysis and constructed summary receiver operating characteristic curves on per-bowel-segment or per-patient basis. Two-sample Z-tests were performed to evaluate differences in sensitivity, specificity, area under the curve (AUC), and the Q* index between any two diagnostic modalities on per-bowel-segment basis. RESULTS Twenty prospective studies were reviewed. On per-bowel-segment basis, the F-FDG-PET had a pooled sensitivity of 0.84, specificity of 0.86, AUC of 0.913, and Q* index of 0.845, whereas for LS, the corresponding values were 0.79, 0.86, 0.877, and 0.808, respectively, and for MAAS they were 0.45, 0.94, 0.524, and 0.518, respectively. On per-patient basis, the corresponding values of LS were 0.91, 0.85, 0.937, and 0.874, respectively. Statistically significant differences were not found in the sensitivity, specificity, AUC, and Q* index between F-FDG-PET and LS on per-bowel-segment basis. CONCLUSION F-FDG-PET has a high degree of diagnostic performance compared with LS and MAAS on per-bowel-segment basis in patients with IBD. LS may be used with satisfactory diagnostic accuracy in detecting active IBD when PET systems are unavailable. A larger prospective validation of these findings would be valuable.
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Abstract
The assessment of extent and severity of IBD is crucial for directing treatment decisions. Clinical symptoms alone are neither sensitive nor specific for the assessment of lesion severity in IBD. Cross-sectional imaging techniques, as well as small-bowel capsule endoscopy (SBCE) and device-assisted enteroscopy, have a high accuracy for assessing the extent of mucosal lesions, and are reliable alternatives to ileocolonoscopy. New endoscopic techniques and devices are emerging for improved follow-up and surveillance. In this Review, we discuss different imaging techniques that are used to assess IBD activity and to survey patients with IBD, and highlight the latest developments in each area. Moreover, technical improvements and new tools that aim to measure intestinal fibrosis, postoperative recurrence, activity indices and endoscopic features are analysed. All of these imaging techniques are aimed at changing the paradigm from symptom-driven to lesion-driven treatment of IBD.
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Ercole E, Rigazio C. Role of bowel ultrasound in the management of postoperative Crohn's disease. World J Gastrointest Pathophysiol 2014; 5:457-461. [PMID: 25400989 PMCID: PMC4231510 DOI: 10.4291/wjgp.v5.i4.457] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 08/01/2014] [Accepted: 09/10/2014] [Indexed: 02/06/2023] Open
Abstract
The use of biological and immunosuppressive therapy in Crohn’s disease (CD) changed favorably the course of the disease and is currently suggested in the prevention of clinical recurrence. Symptomatic exacerbation is a feature of the natural course of the disease. Endoscopic recurrence may occur earlier than clinical manifestations and its rate is still high ever since the first year after surgery. The severity of mucosal lesions is highly predictive of a new flare of the disease so that the early detection of recurrence warrants strong therapeutic changes or a closer monitoring of the case. Endoscopy is at present the gold-standard technique for the diagnosis and grading of recurrence severity, but is poorly accepted by patients for its invasiveness. A simple and easy repeatable examination able to detect early signs of recurrence could be useful in the follow-up as an alternative or as a backing in the choice of the right timing for endoscopy in questionable cases. The use of bowel ultrasound (B-US) in the management of CD has grown in the past twenty years. Its accuracy in the real time detection of the disease and its complications, known since the 80’s, together with the non-invasiveness, low cost and wide availability of the technique have influenced the extension of its clinical use in many referral centers in Europe. The latest generation of ultrasound scanners allows a precise and reproducible morphological assessment of the intestinal tract and the surrounding tissues and enables a complete evaluation of the disease. This review analyzes the literature history about B-US in the diagnosis of postoperative recurrence of CD and outlines the clinical implications of its use. Published works confirm a very good accuracy of B-US in the diagnosis of CD recurrence compared to endoscopy, also in the early phase. B-US shows a good correlation with Rutgeert’s score grading, but does not prove significant association with C-reactive protein or CD Activity Index values. A wider use of B-US in the daily practice could allow to set a prompt diagnosis and an earlier and targeted treatment, probably sparing more invasive tests.
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Dong J, Wang H, Zhao J, Zhu W, Zhang L, Gong J, Li Y, Gu L, Li J. Ultrasound as a diagnostic tool in detecting active Crohn's disease: a meta-analysis of prospective studies. Eur Radiol 2013; 24:26-33. [PMID: 23921767 DOI: 10.1007/s00330-013-2973-0] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 06/20/2013] [Accepted: 07/09/2013] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To evaluate the diagnostic accuracy of ultrasound in assessing active Crohn's disease (CD) in adults. METHODS We systematically searched PubMed, EMBASE, Web of Science and the Cochrane Library for prospective studies in which ultrasound was performed to evaluate active CD in adults from January 1993 to April 2013. Pooled sensitivity, specificity, positive and negative likelihood ratios (LR+ and LR-) and diagnostic odds ratios (DORs) in a per-patient-based analysis were estimated. Additionally, the area under the receiver-operating characteristic (ROC) curve was calculated to measure the diagnostic accuracy of ultrasound in patients with known or suspected CD. RESULTS Fifteen studies involving 1,558 patients were included in this meta-analysis. Overall, the pooled sensitivity (0.88) and LR- (0.14) were not heterogeneous, whereas the pooled specificity (0.97, I(2) = 72.9 %) and LR + (15.10, I(2) = 71.8 %) were. The DOR of ultrasound for assessing active CD was 121.70, with significant heterogeneity (I(2) = 63.3 %). A symmetrical summary ROC curve was plotted showing that the area under the curve was 0.94, indicating good diagnostic accuracy. Meta-regression and subgroup analysis showed that the disease location may be a major cause of heterogeneity. CONCLUSIONS This meta-analysis suggests that ultrasound has high diagnostic accuracy in detecting active CD in adults, especially for small bowel CD. KEY POINTS • Ultrasound can detect active Crohn's disease (CD). • A meta-analysis of ultrasound for detecting active CD was carried out. • This revealed that ultrasound has high diagnostic accuracy for detecting CD.
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Affiliation(s)
- Jianning Dong
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, No. 305 East Zhongshan Road, Nanjing, Jiangsu Province, China
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Novak KL, Wilson SR. The Role of Ultrasound in the Evaluation of Inflammatory Bowel Disease. Semin Roentgenol 2013; 48:224-33. [DOI: 10.1053/j.ro.2013.03.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Paredes JM, Ripollés T, Cortés X, Moreno N, Martínez MJ, Bustamante-Balén M, Delgado F, Moreno-Osset E. Contrast-enhanced ultrasonography: usefulness in the assessment of postoperative recurrence of Crohn's disease. J Crohns Colitis 2013; 7:192-201. [PMID: 22542055 DOI: 10.1016/j.crohns.2012.03.017] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Revised: 03/04/2012] [Accepted: 03/27/2012] [Indexed: 02/08/2023]
Abstract
AIM The aim of this study was to assess whether the contrast-enhanced ultrasonography (CEUS) can increase the value of the ultrasonography in the study of postoperative recurrence of Crohn's disease (CD). MATERIALS AND METHODS 60 patients with CD who had previously undergone ileocolic resection underwent prospectively both CEUS and colonoscopy within a 3-day period. The sonographic examination included evaluation of bowel wall thickness, transmural complications, colour Doppler grade and contrast-enhanced US. In addition a sonographic score was established. The capacity of CEUS to diagnose endoscopic recurrence, as well as its severity, was assessed by calculating the sensitivity, specificity and positive and negative predictive values, accuracy and odds ratio, with their respective 95% confidence intervals. The areas under the receiver operating characteristic (ROC) curves were also calculated. RESULTS 49 out of 60 patients showed endoscopic postoperative recurrence. Severe endoscopic recurrence was present in 34 patients (57%). Classic ultrasound parameters (wall thickness >3mm and colour Doppler flow) revealed an accuracy of 88.3% for the diagnosis of recurrence. Sonographic score 2, including thickness >5mm or contrast enhancement >46%, improved the results with a sensitivity, specificity and accuracy of 98%, 100% and 98.3%, respectively, in the diagnosis of endoscopic recurrence. The area under the ROC curve was 0.99, in remarkable agreement with endoscopy (k: 0.946). Sonographic score 3, including thickness >5mm, contrast enhancement >70% or fistula identified 32 out of 34 (94.1%) severe endoscopic recurrences. The area under the ROC curve was 0.836, in good agreement with endoscopy (k: 0.688). CONCLUSION CEUS shows excellent sensitivity and specificity for the diagnosis of postoperative recurrence in CD and can also detect severe recurrences.
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Affiliation(s)
- José María Paredes
- Department of Gatroenterology, Hospital Universitario Dr Peset, Universidad de Valencia, Valencia, Spain.
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Abstract
OBJECTIVE The goal of this review is to examine the current imaging literature and develop basic imaging guidelines for evaluation of children with inflammatory bowel disease (IBD). The three following typical clinical scenarios in the imaging evaluation of IBD are considered: patient with an initial diagnosis of suspected IBD, the goals being to determine disease extent and severity and to differentiate Crohn disease from ulcerative colitis; patient with known IBD presenting with new acute symptoms (fever, peritonitis, leukocytosis) requiring urgent evaluation; and patient with known IBD presenting with nonacute symptomatic recurrence (abdominal pain, diarrhea), the goals being to assess the efficacy of the current treatment and to evaluate the possible need for additional medical or surgical intervention. CONCLUSION Imaging of pediatric patients with IBD must balance considerations of diagnostic accuracy against concerns about patient exposure to ionizing radiation and tolerance of the imaging technique. The imaging modality chosen depends on the clinical presentation and expected pathologic finding.
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Crohn's disease imaging: a review. Gastroenterol Res Pract 2012; 2012:816920. [PMID: 22315589 PMCID: PMC3270553 DOI: 10.1155/2012/816920] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2011] [Revised: 10/10/2011] [Accepted: 10/10/2011] [Indexed: 12/16/2022] Open
Abstract
Crohn's disease is a chronic granulomatous inflammatory disease of the gastrointestinal tract, which can involve almost any segment from the mouth to the anus. Typically, Crohn's lesions attain segmental and asynchronous distribution with varying levels of seriousness, although the sites most frequently involved are the terminal ileum and the proximal colon. A single gold standard for the diagnosis of CD is not available and the diagnosis of CD is confirmed by clinical evaluation and a combination of endoscopic, histological, radiological, and/or biochemical investigations. In recent years, many studies have been performed to investigate the diagnostic potential of less invasive and more patient-friendly imaging modalities in the evaluation of Crohn's disease including conventional enteroclysis, ultrasonography, color-power Doppler, contrast-enhanced ultrasonography, multidetector CT enteroclysis, MRI enteroclysis, and 99mTc-HMPAO-labeled leukocyte scintigraphy. The potential diagnostic role of each imaging modality has to be considered in different clinical degrees of the disease, because there is no single imaging technique that allows a correct diagnosis and may be performed with similar results in every institution. The aim of this paper is to point out the advantages and limitations of the various imaging techniques in patients with suspected or proven Crohn's disease.
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Ripollés T, Martínez-Pérez MJ, Blanc E, Delgado F, Vizuete J, Paredes JM, Vilar J. Contrast-enhanced ultrasound (CEUS) in Crohn's disease: technique, image interpretation and clinical applications. Insights Imaging 2011; 2:639-652. [PMID: 22347983 PMCID: PMC3259412 DOI: 10.1007/s13244-011-0124-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Revised: 07/01/2011] [Accepted: 07/18/2011] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND: Recent meta-analysis has demonstrated no significant differences in diagnostic accuracy among different imaging techniques (US, MRI and CT) in the evaluation of Crohn's disease (CD). High-resolution bowel ultrasound has emerged as an alternative imaging technique for the diagnosis and follow-up of patients with CD, being as accurate as CT and MR for detecting intramural and extramural extension of the disease. B-Mode US can evaluate the localization and length of the affected intestinal segments and allow identification of transmural complications, stenosis and intestinal obstruction. Doppler techniques are tools that visualize and quantify bowel vascularization. Contrast-enhanced ultrasound (CEUS) is a new technique that involves IV administration of an ultrasound contrast agent with real-time examination, providing an accurate depiction of the bowel wall microvascularization and the perienteric tissues. The introduction of imaging quantification techniques enables an objective quantitative measurement of the enhancement. METHOD AND RESULTS: The article reviews the technique, sonographic findings, advantages and limitations, and clinical applications of contrast-enhanced US in the evaluation of Cohn's disease. Current CEUS applications in CD are: CD activity assessment, evaluation of inflammatory masses, distinguishing phlegmons from abscesses, characterization of stenosis by differentiating fibrosis from inflammation, monitoring the efficacy of drug treatments and improving the detection of disease recurrence. CONCLUSION: CEUS is an emerging technique that is part of the entire sonographic evaluation, with a role in the diagnosis and follow-up of CD, thus improving therapy planning and monitoring of the efficacy of treatment. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s13244-011-0124-1) contains supplementary material, which is available to authorized users.
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Panés J, Bouzas R, Chaparro M, García-Sánchez V, Gisbert JP, Martínez de Guereñu B, Mendoza JL, Paredes JM, Quiroga S, Ripollés T, Rimola J. Systematic review: the use of ultrasonography, computed tomography and magnetic resonance imaging for the diagnosis, assessment of activity and abdominal complications of Crohn's disease. Aliment Pharmacol Ther 2011; 34:125-45. [PMID: 21615440 DOI: 10.1111/j.1365-2036.2011.04710.x] [Citation(s) in RCA: 434] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Cross-sectional imaging techniques, including ultrasonography (US), computed tomography (CT) and magnetic resonance imaging (MRI), are increasingly used for evaluation of Crohn's disease (CD). Aim To perform an assessment of the diagnostic accuracy of cross-sectional imaging techniques for diagnosis of CD, evaluation of disease extension and activity and diagnosis of complications, and to provide recommendations for their optimal use. METHODS Relevant publications were identified by literature search and selected based on predefined quality parameters, including a prospective design, sample size and reference standard. A total of 68 publications were chosen. RESULTS Ultrasonography is an accurate technique for diagnosis of suspected CD and for evaluation of disease activity (sensitivity 0.84, specificity 0.92), is widely available and non-invasive, but its accuracy is lower for disease proximal to the terminal ileum. MRI has a high diagnostic accuracy for the diagnosis of suspected CD and for evaluation of disease extension and activity (sensitivity 0.93, specificity 0.90), and is less dependent on the examiner and disease location compared with US. CT has a similar accuracy to MRI for assessment of disease extension and activity. The three techniques have a high accuracy for identification of fistulas, abscesses and stenosis (sensitivities and specificities >0.80), although US has false positive results for abscesses. As a result of the lack of radiation, US or MRI should be preferred over CT, particularly in young patients. CONCLUSIONS Cross-sectional imaging techniques have a high accuracy for evaluation of suspected and established CD, reliably measure disease severity and complications; they may offer the possibility to monitor disease progression.
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Affiliation(s)
- J Panés
- Hospital Clínic of Barcelona, IDIBAPS, Barcelona, Spain.
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Fletcher JG, Fidler JL, Bruining DH, Huprich JE. New concepts in intestinal imaging for inflammatory bowel diseases. Gastroenterology 2011; 140:1795-806. [PMID: 21530746 DOI: 10.1053/j.gastro.2011.02.013] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Revised: 02/08/2011] [Accepted: 02/11/2011] [Indexed: 12/26/2022]
Abstract
In the last decade, multiple imaging technologies have been developed that improve visualization of the mucosal, mural, and perienteric inflammation associated with inflammatory bowel diseases. Whereas these technologies have traditionally been used to detect and stage suspected enteric inflammation, we review new, emerging roles in detecting clinically occult inflammation (in asymptomatic patients) and inflammatory complications, predicting response prior to therapy, assessing response after therapy, and enteric healing. We compare the relative performance of these technologies in detecting inflammation, focusing on their advantages and disadvantages and how they might complement each other. We also discuss their potential benefits for patients and clinical trials, reviewing technologic developments and areas of research that could provide important insights into the pathophysiology of inflammatory bowel diseases-related enteric inflammation.
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Affiliation(s)
- Joel G Fletcher
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.
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